Analysis and performance of the LP-MPC and QP-MPC cascade control system

Author

Ying, Chao-Ming ; Voorakaranam, Srikanth ; Joseph, Babu

Author_Institution

Dept. of Chem. Eng., Washington Univ., St. Louis, MO, USA

Volume

2

fYear

1998

fDate

21-26 Jun 1998

Firstpage

806

Abstract

The objective of this paper is to address some of the theoretical and practical issues related to the implementation of two stage model predictive control (MPC) schemes such as linear program-MPC and quadratic program-MPC. Single stage QDMC has the drawbacks of steady state offsets, inconsistent set-points and does not take into account economic objectives. The addition of another stage on the top of QDMC is used to address these problems. Results of the application of two stage MPC to the Shell Challenge problem are presented. A comparison is made with the single stage conventional QDMC and some interesting observations are reported. Stability and dynamic performance issues are also considered in this paper

Keywords

cascade control; chemical industry; dynamics; linear programming; predictive control; process control; quadratic programming; stability; cascade control system; chemical industry; dynamics; linear programming; model predictive control; optimisation; process control; quadratic programming; stability; Chemical analysis; Control system synthesis; Control systems; Economic forecasting; Performance analysis; Predictive control; Predictive models; Process control; Stability; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 1998. Proceedings of the 1998

Conference_Location

Philadelphia, PA

ISSN

0743-1619

Print_ISBN

0-7803-4530-4

Type

conf

DOI

10.1109/ACC.1998.703519

Filename

703519